Direct Drive extruder for E3D-v6

I've used the original mk8 direct drive hinged extruder for quite a while now with my E3D V5 with dual fan for reliable PLA cooling and it just works for me, amazing design.

However planning to update to E3D V6 I needed to modify the design a bit and for more reliable flexible printing etc I thought to allow the PTFE tubing run through the whole extruder frame so that you can insert a long tube, cut a hole to the spot where the motor gear and bearing are located, then allow the tube to cont